Machine for removing dust from car-cushions.



H. STERN.

MACHINE FOR REMOVING DUST FROM CAR cusmows.

APPLICATlON FILED JAN-9,1914. 1,182,050. Patented May9,1916.

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H. STERN.

MACHINE FOR REMOVING DUST FROM CAR CUSHIONS.

Q *Q 275w l Patented May 9, 1916.

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H. STERN.

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Patented May 9,1916.

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H. STERN.

MACHINE FOR REMOVING DUST FROM CAR CUSHIONS.

APPLICATION FILED JAN. 9. 1914.

1,182,050. Patented May 9,1916.

8 4 SHEETS-SHEET 4.

. HERMAN STERN, or CLEVELAND, OHIO.

MACHINE FOR REMOVING nns'r rEoM caacusnrons.

Specification of Letters Patent.

Patented May 9, 1216.

Application filed January 9, 1914. Serial No. 811,118.

To all whom it may concern Be it known that I, HERMAN STERN, a citizen of the United States of America, residing at Cleveland, in the county of Guyahoga and State of Ohio, have invented certain new and useful Improvements in Machines for Removing Dust from Car-Cushions; and I hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

This invention relates to new and useful improvements in machines for removing the dust from the seat and back cushions of car-seats.

The object of this invention is to provide a machine of this character adapted to receive'various forms and shapes of cushions and provided with means for thoroughly removing the clust and dirt therefrom quickly and economically. z

My 'nvention, therefore, consists in providing a machine having. a conveyer adapted to receive a cushion and support it while the dust is beingremoved therefrom, also in providing beaters extending longitudinally of the machine and adjustably mounted thereon 1 so as to operate on the cushion to loosen the dustandbring it to the surface of the cushion, and nozzles adapted to come in contact with the surface of the cushion for removing the dust therefrom by suction, and also forrdirecting compressed air against the cushion to blow the dust from the surfacethereof. y

With these objects in view and with the intention of securing other advantages which will hereinafter appear, my invention consists in the features of construction and combination of parts illustrated in the'accompanying drawings, described in the specification and particularlyqpointed out in the claims. In the accompanying drawings Figure ,1 is a top plan of a machine embodying my invention.- Fig. 2 is a sideelevation of the same. same. Fig. A is a section on line 4-4, F1g. 2. Fig. 5 isa section on line 5- '5, Fig. 3. Fig. 6 is a section on line 6.6, Fig. 2.

Again referring to the drawings,and particularly to Figs. 1 and 2, 10 represents the main frame of the machine, and for the sake of convenience wewill call the end ofthe machine toward the, left-handside of the Fig. 3 is an end elevation of the.

drawings the rear end of the machine, and the opposite end of the machine the front end..- At the. front end of the machine are arranged journals 11 which support a shaft 12. This shaft 12 carries a pair of spaced sprocket wheels 13 which are rigidly mounted thereon and on one end of said shaft 12 is secured a driving pulley 15. At the rear end of the machine are mounted a pair of bracketsl? and on each of said brackets are mounted a journal box 18 in a suitable slideway..19.. Each bracket 17 is provided with a flange 20 through which a worm 21 is passed and engages the journal box 18 thereon. Each worm 21 is preferably provided with a crank arm 22 by means of which the wormcan be readily turned and it will be understood that by means of the said worms 21 the said journal boxes 18 can beadjusted back and forth on the said brackets. Inthe said journal boxes 18 is journaled a shaft 23 andon said shaft are secured sprocket wheels 24. A pair of sprocket chains, shown at 27 extend the full length of the machine and are supported on the said sprocket wheels 13 on the shaft 12 andthe said sprocket wheels 24 on theshaft 23. Slats 30 extend between and are secured to the said chains 27, the said sprocket chains and the said slats together forming an endless conveyer. In order to drive the said. conveyer the following arrangement is provided :A shaft 32 is supported in the'mainframelO and projects a distance beyond the said frame at one side thereof and on said shaft 32 aremounted a pair of pulleys 34: which are adapted to be driven by a belt from an engine or motor, not shown. On the said shaft is also fixed a pulley-36 and a pulley 37. A shaft AO-is supported in the frame of the machine near the shaft 32 and on one end of the shaft A0 isfixeda large pulley 41 and on the other end is secured asmallerpulley 4-2. A belt 44 connects the pulley 37 with the pulley 4:1 and a belt 45 connects the pulley 42 with the pulley 15. on the shaft 12. I It will, therefore, be seen that the conveyerwill be driven comparatively slow when the machine is in operation. Angle irons 47 extend from end to end on each side of the frame and serve tosupport the upper reach of the said J conveyer. The heating devicesare arranged in two sets, as follows :Shafts 50 and 51 are mounted in the frame 10. and extend from v side to side thereof. Each of the shafts 50 3 Y and 51 carries a sprocket wheel at one end,

shown at 52 and 53, respectively, and the said sprocket wheels are operativelyconnected by a sprocket chain 5 f. On the shaft 50 is also secured a pulley 55 which is connected by a belt 56 with the pulley 36. Each of said shafts 50 and 51 also carries a pair of diametrically disposed arms 58 and 59, respectively. Above each of said shafts 50 and 51 is mounted a shaft, said shafts being shown at 60 and 61, and each of said shafts" is supported in journals,

shown at 68 and 6a, respectively, carried by plates and .66, respectively, which are mounted on the main frame lOso as to be adjustable vertically thereon. On eachof the said shafts 60 and 61 are secured a series of blocks 67 and 68, respectively, and each block carries a number of ratan rods 69 and 70, respectively, and as shown in the drawings, each block holds three rods, and all' the rods are in turn coupled together by a pair of binding straps 71 and 72, respectively, which reinforce said rods and also cause them to move in unison. From each of the shafts 60 and 61, a leg shown at 7 3 and 7% extends downwardly in the path of the curved arms 58 and 59, respectively. Coil springs 75 and 79 aremounted on the respective shafts 60 and 61, one end of each spring being secured to its respective shaft and the other end being secured to a stationary part of the frame, the arrangement being such that said springs will act to rock the shafts in the opposite direction to that in which they are rocked by said arms 58 and 59 when they pass under the respective legs 7 3"and 7 4 secured to said shafts.

The. operation of the device so far described will be readily understood. The cushion which is to be dusted is placed on the upper reach of the conveyer with the valleys in the upholstering of the cushion running longitudinally of the machine. The conveyer is started and carries the cushion under the first series of beaters. As before mentioned these beaters are adjustable'vertically and therefore'can be raised or lowered to accommodate the thickness of the cushion. The conveyer travels very slowly and as it is traveling the beater rods are raised andpermitted to fall on the cushion a great number of times while the cushion is passing thereunder and it will be noted that as the beaters extend longitudinally of thesframe some of the rods will enter the grooves or valleys in the upholstery of the cushion and loosen the dust in said valleys,

thus reaching both the high and low spots of the cushion. After the cushion has been carried under the first series of beaters it is then carried under the second series of heaters which operate on it in the same manner as the first series. The cushion is therefore given a thorough beating and the dust thereon is loosened and a considerable portion therehf is driven off but some of the dust remains on the surface. Now in order to re move the surface dust the following arrangement is provided. :At the front end of the machine is mounted a frame 80 and this frame supports a suction pipe, shown at 81, having two downward extending branches 82 and 83. The suction pipe 81 is connected by suitable piping with a suction device, not shown. A pipe 84 is arranged to telescope with the branch 82 and a pipe is arranged to telescope with the branch 83. Each of the pipes 84 and 85 carries a nozzle shown at 87 and 88 and the mouth of the nozzle 87 on the pipe 8 L is made to correspond to the shape of the upper surface of the seat cushion so that it will rest evenly on the surface of said cushion.

Also the mouth of the nozzle 88 on the pipe 85 is contoured to correspond to the upper surface of the back cushion of the car seat,

that is, it has the same width as the cushion and is adapted to rest evenly on the surface of said cushion. To the respective pipes 84L and 85 are secured counterbalancing weights 90 and 91 respectively by means of cords 92 and 93 respectively which pass over suitably supporting pulleys 94- and 95 respectively. The cords of the counterbalancing weights also serve as means, for fastening the nozzles in their inoperative position so that one nozzle can be held above the cushion when .the

other nozzle is being used. 1 Below the upper reachof the conveyer are mounted a number of nozzles 97 through which air is forced under pressure so as to strike the bottom of the cushion on the conveyer. front of the machine is arranged a flexible air pipe 98 which carries a nozzle 99. Adjustable guide members are arranged at the front part of the machine to serveto center Also at the the cushion as it passes from under the last beaters and in position to be operated upon by the nozzle. Now after the dust has been loosened by the beaters the continued movement of the conveyer carries the cushion under the suction nozzles and if it happens to be a car-seat the nozzle 87 is arranged to rest on the top of the cushion and the other nozzle 88 is held up out of contact with the cushion and, on the other hand, if the cushion is the back cushion of a car-seat the nozso zle 88 is let down and the nozzle 87 is raised and fastened up. Suitable dampers are arranged in the respective pipes 87 and 88 so that the respective nozzles canbe cut off when not in use. The nozzle in contact with the cushion removes all the surface dust from the upper surface of the "cushion while the conveyer is carrying it under said nozzle and at the sametime the suction'nozzles arranged at the sides of the machine operate on the sides of the cushion sucking the dust therefrom, and the nozzles under the bottom of the cushion direct the compressed air against the bottom thereby removing the dust from the bottom of the cushion. When the front edge of the cushion comes to the front of the machine the operator in attendance blows the dust therefrom by means of a nozzle on the flexible hose and when the cushion leaves the conveyer and slips to the floor the operator in the same manner removes the dust from the rear edge of the cushion.

What I claim is,-

1. In a dusting machine, the combination of a longitudinal frame, a conveyer mounted on said frame, means for driving said conveyer, a suction pipe mounted above said frame, said suction pipe being provided with two branches, a nozzle adjustably mounted on each branch, said nozzle extending transversely of the conveyer and the mouth of one nozzle being curved and the mouth of the other nozzle being straight and means for alternately raising and lowering the said nozzles.

2. In a dusting machine, the combination of a frame, a conveyer mounted on said frame and adapted to support the cushion which is to be dusted, a suction pipe mounted above said frame, said suction pipe being provided with a pair of downwardly extending branches, nozzles adjustably mount: ed on said branches, and means for holding one of said nozzles up above the cushion when the other nozzle is operating on the cushion. V

In testimony whereof, I sign the foregoing specification, in the presence of two witnesses.

HERMAN STERN.

Copies of this patent may be obtained for five cent: each, by addressing the Commissioner 0! Patents,

Washington, D. C. 

